Perle Systems S-1000MM-XXXXXX manual Troubleshooting, General, No connectivity, Method

Troubleshooting

General

∙Ensure power is supplied to the media converter – use of the Perle supplied power adapter is highly recommended.

∙Ensure both devices on either end of the fiber are compatible. If using a single fiber connection, ensure that you have both an Upstream (U) and Downstream (D) media converter.

∙Ensure all cabling is of the correct type and is in good operating condition.

∙For dual-stranded fiber connections, ensure the RX and TX has been reversed between the 2 media converters.

No connectivity

If unable to get full connectivity with all DIP switches in the UP position, this procedure is recommended for troubleshooting.

Method 1

1.Turn off Fiber Negotiation (SW1 Down) on both media converters. Set Link Mode to Standard. Leave all other switches in the UP position.

2.Connect the near end device to port MM1, the LK1 LED on each media converter should be lit to indicate good fiber connections. If the LK1 LED is not lit, then check the fiber cable and the attached device.

3.Repeat step 2 for port MM2/SM2.

4.Return units to desired configuration.

Method 2

Each fiber connection can also be verified by configuring the remote media converter for loopback mode. The link LEDs between the local and remote media converter should be lit. Data should pass through the local converter then over the fiber connection to the remote media converter.

Perle Gigabit Fiber to Fiber Media Installation Guide 9